Odd that the Russian Federation and Israel are now, almost by necessity, being forced to play on the same team, but their interests are somewhat aligned in this matter. Both are concerned that the US-supported ISIS insurgency is liable to get so far out of hand that it may be impossible to put that genie back in the bottle.
And don’t tell us the US is in any way “fighting” ISIS - the efforts of the Current Regime now squatting in the White, er, “Rainbow” Hut are directed at taking down Bashar al-Assad, which puts the Current Regime on the SAME side as ISIS.
If the US were fighting ISIS, the air strikes would be aimed at bombing the TURKS, who have concentrated their involvement here to pounding the Kurds, who are in fact one of the most determined and effective forces now trying to contain ISIS. That puts the Turks on the side of ISIS, upon which they look with a benign eye, allowing ISIS reinforcements to pour into Syria and Iran while smuggling out trained Islamic jihadists to head toward European countries, installing a fifth column of militants in the hearts of these relatively defenseless countries.
The Kurds were one thrust away from conquering ISIS just a couple of months ago and then Turkey started bombing the Kurds. And while the Kurds do that we bomb ISIS when they attack the Kurds but do nothing when the Turks bomb them. Insanity.